Carbureter.



C. T. LIPPOLD. CABBURETER. APPLICATION FILED SEPT-12, 1913.

Patgnted July 13, 1915 CARL T. LIPPO LD, OF FALLS CITY, NEBRASKA.

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- I Specification of Letters Patent.

rateiitea July is, 1915.

Application filed September 12, 1913. Serial No. 789,577.

To all whom it may/convex- :l

Be it known that I, CARL T. know, a citizen of the United States, residing at Falls City, in the county of Richardson, State of Nebraska, have invented certain new and useful Improvements in Carbureters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to mixers for internal combustion engines and has for an object to provide a novel valve which will alltomatically vary the gasolene intake to pro; duce a proper mixture at various engine speeds.

4 A further object is to provide an extremely simple device of this character that may be manufactured at minimum cost and will be formed of a few parts that will not easily get out of order.

lVith-the above objects in view the invention consists of certain novel details of construction and combination of parts hereinafter fully described and claimed, it being understood that various modifications may be made in the minor details of construction within the scope of the appended claims.

In the accompanying drawing illustrat ing the invention: Figure 1 is a longitudinal .Weighted by the diaphragm will normally gravitate to close the inlet pipe,

sectional view through a mixer embodying my improvements. Fig. 2 is a s'imilarview showing the valve open to admit more gasolene. Fig. 3 is a cross sectional view on the line 3-3 Fig. 2. Fig.. 4 'is a longitudinal sectional view through a modified form of the invention. Fig. 5 is a cross sectional view on the line 55 Fig. 4. Fig. 6 is a cross sectional view on the'line 66 Fig. 4. Referring now to the drawing in which like characters of reference designate similar parts, 10 designates the cylindrical casing of the mixer, there being a gasolene inlet pipe 11 entering the casing. An opening 12 is formed in the casing diametrically opposite the inlet pipe and is threaded to receive a set screw 13 which is provided in the tip with a bore 14.

A needle valve 15 has one end slidably fitted in the bore of the set screw'and has the opposite end confronting and adapted to seat in and regulate the flow from the inlet pipe. The needle valve is provided centrally with a diaphragm that is shaped and may be positively held in this position by tightening the set screw.

Upon the set screw being unloosened the needle valve may yield and move into the bore thereof with a resultant opening of the inlet pipe, such yielding movement being effected by the suction of the engine and consequent inrush of air which impinges upon the oblique surfaces of the diaphragm, and

such yielding movement being limited by contact ofthe end of the needle valve with the end wall of the bore in the set screw. It will be apparent that upon low engine speed there will only be sufficient suction to open the needle valve to a slight extent, but upon the engine speeding up, there will be sufiicient suction on the diaphragm to open the needle valve to a greater extent, so that the propeinmixture is assured at various engine speeds. An air valve 18 is slidably fitted in the bore of thecasing, the valve being in the natureof an oval disk which engages in a transverse kerf 19 in the casing, and projects considerably outside of the casing whereby means are provided for shifting the valve inwardly or outwardly to regulate the air intake as desired.

In Figs. 4 to 6 is shown a modification of the invention in which the parts above described are employed with the exception that the needle valve diaphragm is not bent so abruptly at the ends as above described, but is rather bent gently at the ends as shown at 20 whereby the device has been found to act more satisfactorily when used in connection with high speed engines than the above described diaphragm. In the modified form the air valve 21 is in the nature of a disk 22 having a triangular wing 23 at one end and having an oper ating lever 24: at the opposite end, the disk being pivoted on the side of the casing'25 as shown at 26 and being-revoluble through a kerf 27 in the casing. When the body of the disk is disposed in the casing the bore of the latter is nearly completely closed, but when the triangular wing is. disposed in the casing the bore is but partially closed a will be seen by reference to Fig. 6.

From the above description it will be seen that I have provided an extremely simple and inexpensive mixer that will be effective in automatically controlling the gasolene intake to produce a proper mixture for various engine speeds, and further that the device is formed of a few strong and durable parts that will not easily get out of order.

What is claimed, is

1. A carbureter for internal combustion engines including a cylindrical casing, a gasolene inlet pipe entering one side of said casing, a set screw threaded into the other side of said casing opposite said intake pipe,

and having a bore in the tip, a needle valve in. said caslng mounted for oscillating movement in said bore and adapted to seat in and close said inlet pipe, and a diaphragm on said needle valvein the path of movement of air through said casing and acted upon by the inrush of air upon the suction stroke of the engine to move said valve into said bore with a resulting opening of the valve.

2. A carbureter for internal combustion engines including a cylindrical casing, a gasolene inlet 'pipe entering one side of said casing, a set screw threaded into the opposite side of said casing having a bore in the tip, a gravity needle valve in said casing mounted for reciprocatory movement in said bore and seating 'in said inlet pipe, a diaphragm extending longitudinally of said casing and having the ends bent in opposite directions transverse of the bore of said casing whereby said diaphragm-is acted upon by the inrush of air upon the suction stroke of the engine to open said needle valve suiiiciently to accommodate the intake of gasolene to various engine speeds, and an air controlling valve in said casing.

In testimony whereof, I aflix my signature, in the presence of two Witnesses.

CARL T, LIPPOLD. Witnesses:

GEORGE D. LEssEL, Darn) R. CROW.

(Gopies of this patent may he obtained for five cents each, by addressing the "@ommissioner of Patents,

Washington, D. C. 

